CN109656777A - A kind of reducing fan noise regulation method, apparatus, terminal and storage medium - Google Patents
A kind of reducing fan noise regulation method, apparatus, terminal and storage medium Download PDFInfo
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- CN109656777A CN109656777A CN201811383748.9A CN201811383748A CN109656777A CN 109656777 A CN109656777 A CN 109656777A CN 201811383748 A CN201811383748 A CN 201811383748A CN 109656777 A CN109656777 A CN 109656777A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention provides a kind of reducing fan noise regulation method, apparatus, terminal and storage medium, comprising: obtains the use reliability and MTBF value of key chip；Key chip maximum permissible temperature is obtained according to the use reliability and MTBF value；Ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions are set；The maximum permissible temperature is matched with the ambient temperature conditions, obtains the matching PWM value upper limit of the shutdown chip；The matching PWM value upper limit is issued into fan control program.The present invention can balance service life and thermal design redundancy, to realize that fan PWM regulation is accurately matched with heat load, so that rotation speed of the fan is controllable, noise is controllable；After the technology is implemented, power consumption of heat dissipation system can be reduced, improves PUE value, improves economy.
Description
Technical field
The invention belongs to wind-cooling heat dissipating technical fields, and in particular to a kind of reducing fan noise regulation method, apparatus, terminal and deposit
Storage media.
Background technique
Wind-cooling heat dissipating mode, which mainly passes through, is arranged smooth fan, selects suitable fan, cooperates the heat dissipation of careful design
Piece, for the radiating mode due to stable and reliable in work, it is higher to be not required to additional cooling medium (cost is relatively low), radiating efficiency, and
It is used widely in electronic equipment.
But when the powder consumption of electronic equipment is higher or use environment temperature is higher, as server category product, hot environment produce
Product, to meet radiating requirements, it usually needs select the fan of multiple higher wind pressure, air quantity, rotation speed of the fan is higher, is overlapped mutually and leads
It causes to generate larger noise, influences equipment user physical and mental health, and if equipment thermal design will lead to there are when higher redundancy
Additional power loss is unfavorable for energy conservation, and PUE value is higher, and economy is not high.
Therefore for air-cooled product, it is necessary to rational strategy be taken to carry out noise reduction.Generally use necessary passive noise reduction
Measure, but the noise reduction mode reduces limitation, and would generally bring the increase of windage, influences to radiate.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of fan reduction of speed regulation method, apparatus, terminal and storage and is situated between
Matter, to solve the above technical problems.
In a first aspect, the embodiment of the present application provides a kind of fan reduction of speed regulation method, which comprises
Obtain the use reliability and MTBF value of key chip；
Key chip maximum permissible temperature is obtained according to the use reliability and MTBF value；
Ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions are set；
The maximum permissible temperature is matched with the ambient temperature conditions, obtains the matching of the shutdown chip
The PWM value upper limit；
The matching PWM value upper limit is issued into fan control program.
With reference to first aspect, described according to use reliability and MTBF value in the first embodiment of first aspect
Obtaining key chip maximum permissible temperature includes:
According to the use reliability of key chip and MTBF- chip longtime running shell kelvin relation curve acquisition key chip
The mapping table of use environment and maximum permissible temperature；
It is searched from the mapping table according to the use environment of the key chip corresponding with the use environment
Maximum permissible temperature.
With reference to first aspect, in second of embodiment of first aspect, setting ambient temperature conditions and described
The corresponding PWM value of ambient temperature conditions includes:
The interval temperature that environment adjacent temperature case is arranged is 10 DEG C；
The correspondence wind of the ambient temperature conditions is obtained by CALCULATION OF THERMAL according to the temperature range of ambient temperature conditions
Amount；
The correspondence PWM value of the air quantity is calculated according to the relation curve of air quantity and PWM.
With reference to first aspect, described by maximum permissible temperature and the ring in the third embodiment of first aspect
Border temperature case is matched, and the matching PWM value upper limit for obtaining the shutdown chip includes:
It include the ambient temperature conditions of the maximum permissible temperature as matched environment temperature case using temperature range；
Obtain the maximum PWM value of the matched environment temperature case；
PWM value is adjusted under acquisition full load and pass according to the maximum PWM value full loading operation fan test machine
The accurate matched PWM value of key chip maximum permissible temperature；
Using the accurate matched PWM value as the matching PWM value upper limit of test fan machine.
Second aspect, the embodiment of the present application provide a kind of reducing fan noise regulation device, and described device includes:
Feature acquiring unit is configured to obtain the use reliability and MTBF value of key chip；
Temperature limiting unit is configured to obtain key chip highest permission temperature according to the use reliability and MTBF value
Degree；
Operating condition setting unit is configured to setting ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions；
Conditions Matching unit is configured to match the maximum permissible temperature with the ambient temperature conditions, obtain
Take the matching PWM value upper limit of the shutdown chip；
Regulate and control execution unit, is configured to the matching PWM value upper limit issuing fan control program.
In conjunction with second aspect, in the first embodiment of second aspect, the temperature limiting unit includes:
Mapping obtains module, is configured to the use reliability and MTBF- chip longtime running shell temperature according to key chip
Relation curve obtains the use environment of key chip and the mapping table of maximum permissible temperature；
Temperature lookup module, configured with for being looked into from the mapping table according to the use environment of the key chip
Look for maximum permissible temperature corresponding with the use environment.
In conjunction with second aspect, in second of embodiment of second aspect, the operating condition setting unit includes:
Temperature setting module, the interval temperature for being configured to setting environment adjacent temperature case is 10 DEG C；
Wind Coverage Calculation module is configured to be passed through described in CALCULATION OF THERMAL acquisition according to the temperature range of ambient temperature conditions
The correspondence air quantity of ambient temperature conditions；
PWM value computing module is configured to calculate the correspondence PWM value of the air quantity according to the relation curve of air quantity and PWM.
In conjunction with second aspect, in the third embodiment of second aspect, the Conditions Matching module includes:
Temperature Matching module, be configured to using temperature range include the maximum permissible temperature ambient temperature conditions as
Matched environment temperature case；
PWM value acquisition module is configured to obtain the maximum PWM value of the matched environment temperature case；
PWM value adjusts module, be configured to according to the maximum PWM value full loading operation fan test machine to PWM value into
Row adjustment obtain under full load with the accurate matched PWM value of key chip maximum permissible temperature；
Upper limit setup module is configured to using the accurate matched PWM value as on the matching PWM value of test fan machine
Limit.
The third aspect provides a kind of terminal, comprising:
Processor, memory, wherein
The memory is used to store computer program,
The processor from memory for calling and running the computer program, so that terminal executes above-mentioned end
The method for holding terminal.
Fourth aspect provides a kind of computer storage medium, instruction is stored in the computer readable storage medium,
When run on a computer, so that computer executes method described in above-mentioned various aspects.
5th aspect, provides a kind of computer program product comprising instruction, when run on a computer, so that
Computer executes method described in above-mentioned various aspects.
The beneficial effects of the present invention are,
Reducing fan noise regulation method, apparatus, terminal and storage medium provided by the invention, by the key for obtaining test machine
The use reliability and MTBF value of chip, obtain the maximum permissible temperature of key chip by use reliability and MTBF value, then lead to
The ambient temperature conditions and the corresponding PWM value of each ambient temperature conditions for crossing setting different temperatures grade, key chip highest is permitted
Perhaps temperature is matched with ambient temperature conditions, obtains the matching PWM value upper limit of fan, and the matching PWM value upper limit is issued fan
Program is controlled, reducing fan noise can be realized.The present invention can balance service life and thermal design redundancy, to realize fan
PWM regulation is accurately matched with heat load, so that rotation speed of the fan is controllable, noise is controllable；After the technology is implemented, cooling system can be reduced
Power consumption improves PUE value, improves economy.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic flow chart of the method for the application one embodiment.
Fig. 2 is the schematic block diagram of the device of the application one embodiment.
Fig. 3 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The Key Term occurred in the application is explained below.
Fig. 1 is the schematic flow chart of the method for the application one embodiment.Wherein, Fig. 1 executing subject can be one kind
Reducing fan noise regulation device.
As shown in Figure 1, this method 100 includes:
Step 110, the use reliability and MTBF value of key chip are obtained；
Step 120, key chip maximum permissible temperature is obtained according to the use reliability and MTBF value；
Step 130, ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions are set；
Step 140, the maximum permissible temperature is matched with the ambient temperature conditions, obtains the shutdown chip
The matching PWM value upper limit；
Step 150, the matching PWM value upper limit is issued into fan control program.
Optionally, described that key chip is obtained most according to use reliability and MTBF value as the application one embodiment
Height allow temperature include:
According to the use reliability of key chip and MTBF- chip longtime running shell kelvin relation curve acquisition key chip
The mapping table of use environment and maximum permissible temperature；
It is searched from the mapping table according to the use environment of the key chip corresponding with the use environment
Maximum permissible temperature.
Optionally, as the application one embodiment, the setting ambient temperature conditions and the ambient temperature conditions pair
The PWM value answered includes:
The interval temperature that environment adjacent temperature case is arranged is 10 DEG C；
The correspondence wind of the ambient temperature conditions is obtained by CALCULATION OF THERMAL according to the temperature range of ambient temperature conditions
Amount；
The correspondence PWM value of the air quantity is calculated according to the relation curve of air quantity and PWM.
Optionally, described to carry out maximum permissible temperature and the ambient temperature conditions as the application one embodiment
Matching, the matching PWM value upper limit for obtaining the shutdown chip include:
It include the ambient temperature conditions of the maximum permissible temperature as matched environment temperature case using temperature range；
Obtain the maximum PWM value of the matched environment temperature case；
PWM value is adjusted under acquisition full load and pass according to the maximum PWM value full loading operation fan test machine
The accurate matched PWM value of key chip maximum permissible temperature；
Using the accurate matched PWM value as the matching PWM value upper limit of test fan machine.
In order to facilitate the understanding of the present invention, below with the principle of reducing fan noise of the present invention regulation method, in conjunction with the embodiments
In to fan carry out noise reduction regulation process, to reducing fan noise provided by the invention regulation method be further described.
Specifically, the reducing fan noise regulation method includes:
S1, the use reliability and MTBF value for obtaining key chip.
According to equipment complete machine service life require or average time between failures, according to device structure formal character series connection or
The parallel Reliable Mathematics model of person carries out fail-safe analysis, calculating and distribution, calculates separately module, circuit board, chip, layer
Layer decomposes, and obtains the use reliability and MTBF value of key chip.
S2, key chip maximum permissible temperature is obtained according to the use reliability and MTBF value.
Reliability Distribution in life cycle management is carried out to key chip, it is such as low according to environmental quality during equipment application
Warm environment uses duration ratio using duration ratio, hot environment using duration ratio, normal temperature environment, reliable in conjunction with chip operation
Property with operating temperature increase and decline characteristic, can refer to MTBF- chip longtime running shell kelvin relation curve, eventually by distribution
Establishing highest of the chip under different use environments allows investing temperature (i.e. maximum permissible temperature), refers to temperature control as thermal design
Target, to reach the lower hot redundancy of limit in equipment life cycle management.
S3, setting ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions.
According to determining each chip temperature control target, different application environment is refined, can be with 10 DEG C by environment temperature
Interval is divided into multiple operating conditions, carries out CALCULATION OF THERMAL respectively, and calculating meets each operating condition under chip temperature control goal prerequisite and corresponds to institute
Required airflow, then PWM value is calculated by air quantity-PWM relation curve, in this, as the fan speed-regulating upper limit under the operating condition.
S4, the maximum permissible temperature is matched with the ambient temperature conditions, obtains of the shutdown chip
With the PWM value upper limit.
Firstly, including the ambient temperature conditions of key chip maximum permissible temperature as matched environment temperature using temperature range
Operating condition.The verification experimental verification in matched environment temperature case takes the maximum temperature values of matched environment temperature case, the typing matching ring
The maximum PWM value of border temperature case, full loading operation test machine carry out whether Thermal test verifying thermal design index meets, simultaneously
Adjustment PWM value matches the operating condition actual loading, and whether measurement chip actual motion shell temperature is consistent with chip.Ensure to realize PWM value
It is accurately matched with heat load.It regard accurate matched PWM value as the matching PWM value upper limit.
S5, the matching PWM value upper limit is issued to fan control program, controls rotation speed of the fan.
If Fig. 2 shows, which includes:
Feature acquiring unit 210, the feature acquiring unit 210 are used to obtain the use reliability and MTBF of key chip
Value；
Temperature limiting unit 220, the temperature limiting unit 220 are used to be obtained according to the use reliability and MTBF value
Key chip maximum permissible temperature；
Operating condition setting unit 230, the operating condition setting unit 230 is for being arranged ambient temperature conditions and the environment temperature
The corresponding PWM value of operating condition；
Conditions Matching unit 240, the Conditions Matching unit 240 are used for the maximum permissible temperature and the environment temperature
Degree operating condition is matched, and the matching PWM value upper limit of the shutdown chip is obtained；
Regulate and control execution unit 250, the regulation execution unit 250 is used to the matching PWM value upper limit issuing fan control
Processing procedure sequence.
Optionally, as the application one embodiment, the temperature limiting unit includes:
Mapping obtains module, is configured to the use reliability and MTBF- chip longtime running shell temperature according to key chip
Relation curve obtains the use environment of key chip and the mapping table of maximum permissible temperature；
Temperature lookup module, configured with for being looked into from the mapping table according to the use environment of the key chip
Look for maximum permissible temperature corresponding with the use environment.
Optionally, as the application one embodiment, the operating condition setting unit includes:
Temperature setting module, the interval temperature for being configured to setting environment adjacent temperature case is 10 DEG C；
Wind Coverage Calculation module is configured to be passed through described in CALCULATION OF THERMAL acquisition according to the temperature range of ambient temperature conditions
The correspondence air quantity of ambient temperature conditions；
PWM value computing module is configured to calculate the correspondence PWM value of the air quantity according to the relation curve of air quantity and PWM.
Optionally, as the application one embodiment, the Conditions Matching module includes:
Temperature Matching module, be configured to using temperature range include the maximum permissible temperature ambient temperature conditions as
Matched environment temperature case；
PWM value acquisition module is configured to obtain the maximum PWM value of the matched environment temperature case；
PWM value adjusts module, be configured to according to the maximum PWM value full loading operation fan test machine to PWM value into
Row adjustment obtain under full load with the accurate matched PWM value of key chip maximum permissible temperature；
Upper limit setup module is configured to using the accurate matched PWM value as on the matching PWM value of test fan machine
Limit.
Fig. 3 is a kind of structural schematic diagram of terminal installation 300 provided in an embodiment of the present invention, which can be with
For executing the method provided by the embodiments of the present application for updating heat dissipation policing parameter.
Wherein, which may include: processor 310, memory 320 and communication unit 330.These components
It is communicated by one or more bus, it will be understood by those skilled in the art that the structure of server shown in figure is not
The restriction to the application is constituted, it is also possible to hub-and-spoke configuration either busbar network, can also include more than illustrating
Or less component, perhaps combine certain components or different component layouts.
Wherein, which can be used for executing instruction for storage processor 310, and memory 320 can be by any class
The volatibility or non-volatile memories terminal or their combination of type are realized, such as static random access memory (SRAM), electricity
Erasable Programmable Read Only Memory EPROM (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory
(PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.When executing instruction in memory 320
When being executed by processor 310, so that terminal 300 some or all of is able to carry out in following above method embodiment step.
Processor 310 is the control centre for storing terminal, utilizes each of various interfaces and the entire electric terminal of connection
A part by running or execute the software program and/or module that are stored in memory 320, and calls and is stored in storage
Data in device, to execute the various functions and/or processing data of electric terminal.The processor can be by integrated circuit
(Integrated Circuit, abbreviation IC) composition, such as the IC that can be encapsulated by single are formed, can also be by more of connection
The encapsulation IC of identical function or different function and form.For example, processor 310 can only include central processing unit
(Central Processing Unit, abbreviation CPU).In the application embodiment, CPU can be single operation core, can also
To include multioperation core.
Communication unit 330, for establishing communication channel, so that the storage terminal be allow to be led to other terminals
Letter.It receives the user data of other terminals transmission or sends user data to other terminals.
The application also provides a kind of computer storage medium, wherein the computer storage medium can be stored with program, the journey
Sequence may include step some or all of in each embodiment provided by the present application when executing.The storage medium can for magnetic disk,
CD, read-only memory (English: read-only memory, referred to as: ROM) or random access memory (English:
Random access memory, referred to as: RAM) etc..
Therefore, the application passes through the use reliability and MTBF value for obtaining the key chip of test machine, by use reliability
The maximum permissible temperature of key chip is obtained with MTBF value, then ambient temperature conditions and each ring by setting different temperatures grade
Key chip maximum permissible temperature is matched with ambient temperature conditions, obtains fan by the corresponding PWM value of border temperature case
The PWM value upper limit is matched, the matching PWM value upper limit is issued into fan control program, reducing fan noise can be realized.The present invention can balance
Service life and thermal design redundancy, thus realize that fan PWM regulation is accurately matched with heat load, so that rotation speed of the fan is controllable,
Noise is controllable；After the technology is implemented, power consumption of heat dissipation system can be reduced, improves PUE value, improves economy, the present embodiment can reach
To technical effect may refer to described above, details are not described herein again.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present application can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present application substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which is stored in
Such as USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory in one storage medium
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk, including it is several
Instruction is used so that a terminal (can be personal computer, server or second terminal, the network terminal etc.) is held
Row all or part of the steps of the method according to each embodiment of the present invention.
Same and similar part may refer to each other between each embodiment in this specification.Implement especially for terminal
For example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring in embodiment of the method
Explanation.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
Although by reference to attached drawing and combining the mode of preferred embodiment to the present invention have been described in detail, the present invention
It is not limited to this.Without departing from the spirit and substance of the premise in the present invention, those of ordinary skill in the art can be to the present invention
Embodiment carry out various equivalent modifications or substitutions, and these modifications or substitutions all should in covering scope of the invention/appoint
What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer
It is included within the scope of the present invention.Therefore, protection scope of the present invention is answered described is with scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of reducing fan noise regulates and controls method, which is characterized in that the described method includes:
Obtain the use reliability and MTBF value of key chip；
Key chip maximum permissible temperature is obtained according to the use reliability and MTBF value；
Ambient temperature conditions and the corresponding PWM value of the ambient temperature conditions are set；
The maximum permissible temperature is matched with the ambient temperature conditions, obtains the matching PWM value of the shutdown chip
The upper limit；
The matching PWM value upper limit is issued into fan control program.
2. the method according to claim 1, wherein described obtain crucial core according to use reliability and MTBF value
Piece maximum permissible temperature includes:
According to the use of the use reliability of key chip and MTBF- chip longtime running shell kelvin relation curve acquisition key chip
The mapping table of environment and maximum permissible temperature；
Highest corresponding with the use environment is searched from the mapping table according to the use environment of the key chip
Allow temperature.
3. the method according to claim 1, wherein the setting ambient temperature conditions and the environment temperature work
The corresponding PWM value of condition includes:
The interval temperature that environment adjacent temperature case is arranged is 10 DEG C；
The correspondence air quantity of the ambient temperature conditions is obtained by CALCULATION OF THERMAL according to the temperature range of ambient temperature conditions；
The correspondence PWM value of the air quantity is calculated according to the relation curve of air quantity and PWM.
4. the method according to claim 1, wherein described by maximum permissible temperature and the ambient temperature conditions
It is matched, the matching PWM value upper limit for obtaining the shutdown chip includes:
It include the ambient temperature conditions of the maximum permissible temperature as matched environment temperature case using temperature range；
Obtain the maximum PWM value of the matched environment temperature case；
PWM value is adjusted under acquisition full load and crucial core according to the maximum PWM value full loading operation fan test machine
The accurate matched PWM value of piece maximum permissible temperature；
Using the accurate matched PWM value as the matching PWM value upper limit of test fan machine.
5. a kind of reducing fan noise regulation device, which is characterized in that described device includes:
Feature acquiring unit is configured to obtain the use reliability and MTBF value of key chip；
Temperature limiting unit is configured to obtain key chip maximum permissible temperature according to the use reliability and MTBF value；
Operating condition setting unit is configured to setting ambient temperature conditions and the corresponding PWM value upper limit of the ambient temperature conditions；
Conditions Matching unit is configured to match the maximum permissible temperature with the ambient temperature conditions, obtains institute
State the matching PWM value upper limit of shutdown chip；
Regulate and control execution unit, is configured to the matching PWM value upper limit issuing fan control program.
6. device according to claim 5, which is characterized in that the temperature limiting unit includes:
Mapping obtains module, is configured to the use reliability and MTBF- chip longtime running shell kelvin relation according to key chip
The use environment of curve acquisition key chip and the mapping table of maximum permissible temperature；
Temperature lookup module, configured with searched from the mapping table for the use environment according to the key chip with
The corresponding maximum permissible temperature of the use environment.
7. device according to claim 5, which is characterized in that the operating condition setting unit includes:
Temperature setting module, the interval temperature for being configured to setting environment adjacent temperature case is 10 DEG C；
Wind Coverage Calculation module is configured to obtain the environment by CALCULATION OF THERMAL according to the temperature range of ambient temperature conditions
The correspondence air quantity of temperature case；
PWM value computing module is configured to calculate the correspondence PWM value of the air quantity according to the relation curve of air quantity and PWM.
8. device according to claim 5, which is characterized in that the Conditions Matching module includes:
Temperature Matching module is configured to temperature range include the ambient temperature conditions of the maximum permissible temperature as matching
Ambient temperature conditions；
PWM value acquisition module is configured to obtain the maximum PWM value of the matched environment temperature case；
PWM value adjusts module, is configured to adjust PWM value according to the maximum PWM value full loading operation fan test machine
Under whole acquisition full load with the accurate matched PWM value of key chip maximum permissible temperature；
Upper limit setup module is configured to using the accurate matched PWM value as the matching PWM value upper limit of test fan machine.
9. a kind of terminal characterized by comprising
Processor；
The memory executed instruction for storage processor；
Wherein, the processor is configured to perform claim requires the described in any item methods of 1-4.
10. a kind of computer readable storage medium for being stored with computer program, which is characterized in that the program is executed by processor
Shi Shixian method for example of any of claims 1-4.
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| CN201811383748.9A CN109656777B (en) | 2018-11-20 | 2018-11-20 | Fan noise reduction regulation and control method and device, terminal and storage medium |
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| CN201811383748.9A CN109656777B (en) | 2018-11-20 | 2018-11-20 | Fan noise reduction regulation and control method and device, terminal and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111142640A (en) * | 2019-12-31 | 2020-05-12 | 联想(北京)有限公司 | Control method of electronic equipment |
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